coberst wrote:"Quickie from Wiki: “The psychologist, Carl Jung, who studied archetypes, proposed an alternative definition of symbol, distinguishing it from the term "sign". In Jung's view, a sign stands for something known, as a word stands for its referent. He contrasted this with symbol, which he used to stand for something that is unknown and that cannot be made clear or precise.”

That's why I posted this: A friend of mine long ago drew this symbol - it is by the above definition a symbol and not a sign, because it does not refer to something specific and explicit, but stands for something which cannot be made clear.